The document describes the race between scientists in America, the Soviet Union and Germany to build the world's most dangerous weapon - the atomic bomb - during World War 2. It details key events such as Otto Hahn's discovery of nuclear fission in uranium in 1938 which sparked the race, the establishment of the Manhattan Project led by Leslie Groves and Robert Oppenheimer at Los Alamos in 1943 to develop the bomb, and the first nuclear test at the Trinity site in July 1945 which led to the bombing of Hiroshima and Nagasaki in August 1945.
